CN104348133B - Reactor protection system internal electric source interlocking controller - Google Patents
Reactor protection system internal electric source interlocking controller Download PDFInfo
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- CN104348133B CN104348133B CN201310346787.2A CN201310346787A CN104348133B CN 104348133 B CN104348133 B CN 104348133B CN 201310346787 A CN201310346787 A CN 201310346787A CN 104348133 B CN104348133 B CN 104348133B
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- relay
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- dead electricity
- normally opened
- interlocking
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Abstract
The invention belongs to reactor protection technical field, and in particular to a kind of reactor protection system internal electric source interlocking controller, it is therefore an objective to provide and a kind of can solve the problem that the device that existing reactor protection system dead electricity causes equipment malfunction to make problem.Described device includes power supply module, relay assembly and commutation diode；Wherein, power supply module includes 24V D.C. regulated power supplies and 12V D.C. regulated power supplies, per each four of class；Relay assembly includes dead electricity control relay and interlocking relay, wherein, dead electricity control relay 4, interlocking relay 2；The quantity of commutation diode is 4.The present invention is using by power supply module, relay assembly and commutation diode; output counter working power is automatically cut off when realizing two logic cabinet dead electricity in reactor protection system, it is therefore prevented that two logic cabinet dead electricity cause reactor protection system misoperation in reactor protection system.
Description
Technical field
The invention belongs to reactor protection technical field, and in particular to a kind of reactor protection system internal electric source interlocking control
Device processed.
Background technology
Reactor protection system（Abbreviation RPR）Including including emergency shut-down system, engineered safety system and ATWT systems, by
Electrical part, mechanical devices and circuit composition, for producing protection signal.Its function is：In reactor unusual service condition or accident work
Under condition, by shutdown and（Or）Start engineered safeguards features, to prevent or mitigate the damage of reactor core and coolant system part, protect
Protect the integrality of three big nuclear safety barriers, it is to avoid cause radioactive substance largely to escape, protect nuclear power plant's surrounding environment not get dirty
Dye and the safety of personnel.
The logical process part of certain reactor protection system is designed using the negative logic of failure safe, i.e. logical signal dead electricity
When send shutdown/ad hoc enabling signal to output counter.Although the design is conducive to improving the security of reactor shut-off system, but simultaneously
The malfunction probability of engineered safety system is added, such as logic cabinet dead electricity is caused in RPR system upstream bus dead electricity or other reasonses
When, reactor protection system error starting engineered safeguards features can be caused, cause serious consequence.For example, above-mentioned reactor protection
Engineered safety system typical logic figure in system is as shown in figure 1, RPR logic cabinets are made up of cmos circuit in figure, using negative logic
Design, once RPR logic cabinet dead electricity, system is with regard to misoperation.Such as, after 220VAC uninterrupted power sources dead electricity, because of different racks
The capacitor discharge time of power supply module and logic/output fastener is inconsistent, causes logic cabinet prior to output counter dead electricity, in output counter
Before completely losing power supply, the latch-in relay in rack（RS）Act and keep, output signal realistic operation.At present, still
The report of device solved the above problems is not related to.
The content of the invention
It can solve the problem that existing reactor protection system dead electricity causes equipment malfunction to be made it is an object of the invention to provide one kind
The reactor protection system internal electric source interlocking controller of problem.
What the present invention was realized in：
A kind of reactor protection system internal electric source interlocking controller, including power supply module, relay assembly and rectification two
Pole pipe；Wherein, power supply module includes 24V D.C. regulated power supplies and 12V D.C. regulated power supplies, per each four of class；Relay assembly
Including dead electricity control relay and interlocking relay, wherein, dead electricity control relay 4, interlocking relay 2, the pole of rectification two
The quantity of pipe is 4；
Altogether, first 24V is straight for the earth terminal of first 24V D.C. regulated power supply and second 24V D.C. regulated power supply
The negative terminal of the 24V voltage output ends of stream voltage-stabilized power supply and second 24V D.C. regulated power supply respectively with first commutation diode
It is connected with the negative terminal of second commutation diode, the anode of first commutation diode and second commutation diode is in parallel；
The earth terminal of first 12V D.C. regulated power supply and the earth terminal of second 12V D.C. regulated power supply altogether, each
1 dead electricity control relay is installed between the positive and negative polarities of 12V D.C. regulated power supply output ends；
Altogether, the 3rd 24V is straight for the earth terminal of 3rd 24V D.C. regulated power supply and the 4th 24V D.C. regulated power supply
Flow the negative terminal and the 4th commutation diode of voltage-stabilized power supply and the 4th 24V voltage output end respectively with the 3rd commutation diode
Negative terminal be connected, the anode of the negative terminal of the 3rd commutation diode and the 4th commutation diode is in parallel；
The earth terminal of 3rd 12V D.C. regulated power supply and the earth terminal of the 4th 12V D.C. regulated power supply altogether, each
1 dead electricity control relay is installed between the positive and negative polarities of 12V D.C. regulated power supply output ends；
Another contact of the secondary normally opened contact of the first of first dead electricity control relay and first interlocking relay
Coil is connected, and operating voltage is provided for it.Another contact of the secondary normally opened contact of the first of 3rd dead electricity control relay with
The coil connection of second interlocking relay；
First normally opened contact of first interlocking relay and first normally opened contact of second interlocking relay are simultaneously
Connection, one end of first normally opened contact is connected with the anode of first commutation diode, and the other end is used as power output end；
Second normally opened contact of first interlocking relay and second normally opened contact of second interlocking relay are simultaneously
Connection, one end of second normally opened contact is connected with the anode of the 3rd commutation diode, and the other end is used as power output end；
3rd normally opened contact of first interlocking relay and the 3rd normally opened contact of second interlocking relay are simultaneously
Connection, one end of the 3rd normally opened contact and the power supply of warning circuit are connected, and the other end is used as interlock circuit fault alarm letter
Number output.
The secondary normally opened contact of the first of first dead electricity control relay as described above and second dead electricity control relay
The first secondary normally opened contact it is in parallel, wherein, first contact of first dead electricity control relay again with first pole of rectification two
The anode connection of pipe.
The secondary normally opened contact of the first of 3rd dead electricity control relay as described above and the 4th dead electricity control relay
The first secondary normally opened contact it is in parallel, wherein, the contact of first contact first of the 3rd dead electricity control relay is again with the 3rd
The anode connection of individual commutation diode.
Power supply module as described above uses the D.C. regulated power supply of logic cabinet and output counter in reactor protection system real
It is existing；Dead electricity control relay is 12VDC relays in relay assembly, and interlocking relay is 24V relays.
12V voltage-stabilized power supplies in power supply module as described above use the working power in logic cabinet, and 24V voltage-stabilized power supplies are adopted
With the working power in output counter, commutation diode is more than 5A commutation diode using rated current.
The beneficial effects of the invention are as follows：
The present invention is realized two in reactor protection system using by power supply module, relay assembly and commutation diode
Output counter working power is automatically cut off during individual logic cabinet dead electricity, it is therefore prevented that two logic cabinet dead electricity cause in reactor protection system
Reactor protection system misoperation.By test：Interlocking relay 15ms after logic cabinet starts dead electricity is acted, and output counter starts
Dead electricity, output counter has completely lost working power；Output counter relay is not operating all the time.
Brief description of the drawings
Fig. 1 is the schematic diagram of the logical process part of certain reactor protection system；
Fig. 2 is a kind of structure principle chart of reactor protection system internal electric source interlocking controller of the present invention.
Embodiment
Below in conjunction with the accompanying drawings with a kind of reactor protection system internal electric source interlocked control of the specific embodiment to the present invention
Device describes in detail：
As shown in Fig. 2 a kind of reactor protection system internal electric source interlocking controller, including power supply module, relay group
Part and commutation diode.Wherein, power supply module includes 24V D.C. regulated power supplies and 12V D.C. regulated power supplies, per each four of class.
Relay assembly includes dead electricity control relay and interlocking relay, wherein, dead electricity control relay 4, interlocking relay 2
It is individual.The quantity of commutation diode is 4.
Altogether, its 24V voltage is defeated for the earth terminal of first 24V D.C. regulated power supply and second 24V D.C. regulated power supply
Go out end respectively with the negative terminal of first commutation diode and the negative terminal of second commutation diode to be connected, the two commutation diodes
Anode it is in parallel.
The earth terminal of first 12V D.C. regulated power supply and the earth terminal of second 12V D.C. regulated power supply altogether, each
1 dead electricity control relay is installed between the positive and negative polarities of 12V D.C. regulated power supply output ends.Above-mentioned dead electricity control relay
In, the first secondary normally opened contact of the first secondary normally opened contact and second dead electricity control relay of first dead electricity control relay
Parallel connection, wherein anode of first contact of first dead electricity control relay again with first commutation diode is connected.
Altogether, its 24V voltage is defeated for the earth terminal of 3rd 24V D.C. regulated power supply and the 4th 24V D.C. regulated power supply
Go out end respectively with the negative terminal of the 3rd commutation diode and the negative terminal of the 4th commutation diode to be connected, the two commutation diodes
Anode it is in parallel.
The earth terminal of 3rd 12V D.C. regulated power supply and the earth terminal of the 4th 12V D.C. regulated power supply altogether, each
1 dead electricity control relay is installed between the positive and negative polarities of 12V D.C. regulated power supply output ends.Above-mentioned dead electricity control relay
In, the first secondary normally opened contact of the first secondary normally opened contact and the 4th dead electricity control relay of the 3rd dead electricity control relay
Parallel connection, wherein the anode of the contact of first contact first of the 3rd dead electricity control relay again with the 3rd commutation diode
Connection.
Another contact of the secondary normally opened contact of the first of first dead electricity control relay and first interlocking relay
Coil is connected, and operating voltage is provided for it.Another contact of the secondary normally opened contact of the first of 3rd dead electricity control relay with
The coil connection of second interlocking relay, operating voltage is provided for it.
First normally opened contact of first interlocking relay and first normally opened contact of second interlocking relay are simultaneously
Connection, one end of first normally opened contact is connected with the anode of first commutation diode, and the other end, as power output end, is anti-
The output counter of heap protection system is answered to power.
Second normally opened contact of first interlocking relay and second normally opened contact of second interlocking relay are simultaneously
Connection, one end of second normally opened contact is connected with the anode of the 3rd commutation diode, and the other end, as power output end, is anti-
The output counter of heap protection system is answered to power.
3rd normally opened contact of first interlocking relay and the 3rd normally opened contact of second interlocking relay are simultaneously
Connection, one end of the 3rd normally opened contact and the power supply of warning circuit are connected, and the other end is used as interlock circuit fault alarm letter
Number output.
Power supply module uses the corresponding D.C. regulated power supply of logic cabinet and output counter in existing reactor protection system real
It is existing, wherein, 12V voltage-stabilized power supplies use the working power in logic cabinet, and 24V voltage-stabilized power supplies use the working power in output counter.
Dead electricity control relay is 12VDC relays in relay assembly, and interlocking relay is 24V relays, and commutation diode is used
Rated current is more than 5A commutation diode.Relay, commutation diode and warning circuit can be realized using prior art.
When two logic cabinet 12V voltage-stabilized power supply dead electricity in reactor protection system, the action of dead electricity control relay, connection
Relay electric-loss is locked, interlocking relay normally opened contact disconnects, moment excision output counter working power prevents the relay in output counter
Device misoperation.
When the only one of which logic cabinet 12V voltage-stabilized power supply dead electricity in reactor protection system, dead electricity control relay is not
Action, interlocking relay not dead electricity, interlocking relay normally opened contact closure, output counter working power is not cut off, and prevents reactor
Protection system tripping, reactor protection system still has automatically and manually defencive function.
When two output counter dead electricity in reactor protection system, dead electricity control relay is failure to actuate, interlocking relay
It is failure to actuate, interlocking relay normally opened contact closure, it is allowed to logic cabinet working power is cut off manually, to carry out interruption maintenance.
When two interlocking relays have one or two dead electricity in reactor protection system, the normally opened of interlocking relay touches
Point is disconnected, and interlocking relay failure alarm signal is sent to staff.
The present invention is realized two in reactor protection system using by power supply module, relay assembly and commutation diode
Output counter working power is automatically cut off during individual logic cabinet dead electricity, it is therefore prevented that two logic cabinet dead electricity cause in reactor protection system
Reactor protection system misoperation.By test：Interlocking relay 15ms after logic cabinet starts dead electricity is acted, and output counter starts
Dead electricity, output counter has completely lost working power；Output counter relay is not operating all the time.
Claims (3)
1. a kind of reactor protection system internal electric source interlocking controller, including power supply module, relay assembly and the pole of rectification two
Pipe；Wherein, power supply module includes 24V D.C. regulated power supplies and 12V D.C. regulated power supplies, per each four of class；Relay assembly bag
Dead electricity control relay and interlocking relay are included, wherein, dead electricity control relay 4, interlocking relay 2, commutation diode
Quantity be 4；
Altogether, first 24V direct current is steady for the earth terminal of first 24V D.C. regulated power supply and second 24V D.C. regulated power supply
The negative terminal and of the 24V voltage output ends of voltage source and second 24V D.C. regulated power supply respectively with first commutation diode
The negative terminal of two commutation diodes is connected, and the anode of first commutation diode and second commutation diode is in parallel；
The earth terminal of first 12V D.C. regulated power supply and the earth terminal of second 12V D.C. regulated power supply altogether, each 12V
1 dead electricity control relay is installed between the positive and negative polarities of D.C. regulated power supply output end；
Altogether, the 3rd 24V direct current is steady for the earth terminal of 3rd 24V D.C. regulated power supply and the 4th 24V D.C. regulated power supply
The negative terminal and of the 24V voltage output ends of voltage source and the 4th 24V D.C. regulated power supply respectively with the 3rd commutation diode
The negative terminal of four commutation diodes is connected, the anode parallel connection of the anode and the 4th commutation diode of the 3rd commutation diode；
The earth terminal of 3rd 12V D.C. regulated power supply and the earth terminal of the 4th 12V D.C. regulated power supply altogether, each 12V
1 dead electricity control relay is installed between the positive and negative polarities of D.C. regulated power supply output end；
First pair of the secondary normally opened contact of the first of first dead electricity control relay and second dead electricity control relay is normally opened to be touched
Point is in parallel, wherein, a contact of the first secondary normally opened contact of first dead electricity control relay again with first pole of rectification two
The anode connection of pipe；
First pair of the secondary normally opened contact of the first of the 3rd dead electricity control relay and the 4th dead electricity control relay is normally opened to be touched
Point is in parallel, wherein, a contact of the first secondary normally opened contact of the 3rd dead electricity control relay again with the 3rd pole of rectification two
The anode connection of pipe；
Another contact of the secondary normally opened contact of the first of first dead electricity control relay and the coil of first interlocking relay
Connection, operating voltage is provided for it；Another contact and second of the secondary normally opened contact of the first of 3rd dead electricity control relay
The coil connection of individual interlocking relay；
First normally opened contact of first interlocking relay is in parallel with first normally opened contact of second interlocking relay, the
One end of one normally opened contact is connected with the anode of first commutation diode, and the other end is used as power output end；
Second normally opened contact of first interlocking relay is in parallel with second normally opened contact of second interlocking relay, the
One end of two normally opened contacts is connected with the anode of the 3rd commutation diode, and the other end is used as power output end；
3rd normally opened contact of first interlocking relay is in parallel with the 3rd normally opened contact of second interlocking relay, the
One end of three normally opened contacts and the power supply of warning circuit are connected, and the other end is defeated as interlock circuit failure alarm signal
Go out.
2. a kind of reactor protection system internal electric source interlocking controller according to claim 1, it is characterised in that：It is described
Power supply module use reactor protection system in logic cabinet and output counter D.C. regulated power supply realize；Lost in relay assembly
Pyroelectric monitor relay is 12VDC relays, and interlocking relay is 24V relays.
3. a kind of reactor protection system internal electric source interlocking controller according to claim 1, it is characterised in that：It is described
Power supply module in 12V voltage-stabilized power supplies use logic cabinet in working power, 24V voltage-stabilized power supplies use output counter in work
Power supply, commutation diode is more than 5A commutation diode using rated current.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310346787.2A CN104348133B (en) | 2013-08-09 | 2013-08-09 | Reactor protection system internal electric source interlocking controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310346787.2A CN104348133B (en) | 2013-08-09 | 2013-08-09 | Reactor protection system internal electric source interlocking controller |
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| CN104348133A CN104348133A (en) | 2015-02-11 |
| CN104348133B true CN104348133B (en) | 2017-07-18 |
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| CN105137474B (en) * | 2015-07-07 | 2017-11-24 | 中国核动力研究设计院 | A kind of routine test method for source range neutron detector power supply control function |
| CN105788687B (en) * | 2016-05-18 | 2017-10-13 | 中国核动力研究设计院 | Reactor protection system two from three meets maintenance bypass system |
Citations (2)
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| CN102324258A (en) * | 2011-06-17 | 2012-01-18 | 中广核工程有限公司 | Method and system for preventing error drive of ATWT (Anticipated Transients without Trip) equipment cabinet |
| CN202678155U (en) * | 2012-05-16 | 2013-01-16 | 平高集团有限公司 | A lock-up control circuit between a motor power supply and a control power supply of a knife switch mechanism |
-
2013
- 2013-08-09 CN CN201310346787.2A patent/CN104348133B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324258A (en) * | 2011-06-17 | 2012-01-18 | 中广核工程有限公司 | Method and system for preventing error drive of ATWT (Anticipated Transients without Trip) equipment cabinet |
| CN202678155U (en) * | 2012-05-16 | 2013-01-16 | 平高集团有限公司 | A lock-up control circuit between a motor power supply and a control power supply of a knife switch mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 大亚湾及岭澳核电站ATWT保护失电风险;郭城;《核动力工程》;20100831;第31卷(第4期);61-65 * |
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