CN110085333A - A kind of protection system suitable for Small reactor - Google Patents
A kind of protection system suitable for Small reactor Download PDFInfo
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- CN110085333A CN110085333A CN201910299648.6A CN201910299648A CN110085333A CN 110085333 A CN110085333 A CN 110085333A CN 201910299648 A CN201910299648 A CN 201910299648A CN 110085333 A CN110085333 A CN 110085333A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
- G21C9/02—Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; Control elements having arrangements activated in an emergency
- G21C9/022—Reactor fuses
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D3/00—Control of nuclear power plant
- G21D3/001—Computer implemented control
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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
-
- 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
Abstract
The present invention provides a kind of protection system suitable for Small reactor; the system comprises signal processing module, logic processing module, device interface module and shutdown breakers; wherein signal processing module includes multiple signal processing units, and signal processing unit is made of first various subunits and second various subunits；Logic processing module includes multiple Logical processing units, and Logical processing unit is made of third multiplicity subunits and the 4th various subunits；All first various subunits are connect with all third multiplicity subunits, all second various subunits are connect with all four various subunits, and the third multiplicity subunits of same Logical processing unit and the 4th various subunits connect a pair of of shutdown breaker simultaneously.The present invention passes through the separation of signal processing module and logic processing module, solves the problems, such as that prior art processing speed is slow, the traffic is big.
Description
Technical field
The present invention relates to technical field of nuclear power more particularly to a kind of protection systems suitable for Small reactor.
Background technique
Existing reactor protection system is generally basede on land large pressurized water reactor, is not suitable for the sea small-sized heap of compact and uses,
In the design using bulk redundancy, the design of diversification and function dispersion, therefore IO scale is big, cabinet quantity is more, signal interaction
Complexity needs internal communication board quantity more.
Summary of the invention
In order to solve the above technical problems, the present invention provides, one kind is compact-sized, appropriate redundancy to be suitable for Small reactor
Protection system.
A kind of protection system suitable for Small reactor provided by the invention, the system comprises signal processing module,
Logic processing module, device interface module and shutdown breaker, in which:
The signal processing module includes multiple signal processing units, each signal processing unit by first various subunits and
Second various subunits composition；
The logic processing module includes multiple Logical processing units, each Logical processing unit by third multiplicity subunits and
4th various subunits composition；
All first various subunits connects with all third multiplicity subunits, all second multiplicity subunits with
All four various subunits connect, and third multiplicity subunits and the 4th various subelement are equal in same Logical processing unit
A pair of of shutdown breaker is connected simultaneously, and the third multiplicity subunits of same Logical processing unit and the 4th various subunits are equal
Connect identical device interface module；
Each signal processing unit, for obtaining measuring signal from corresponding sensor, according to the measuring signal and in advance
If threshold value, decide whether to trigger the local trip signal of shutdown and/or the local trigger signal of engineered safeguards features, and will be described
The local trip signal of shutdown and/or the local trigger signal of the engineered safeguards features are sent to each logical process list
Corresponding multiplicity subunits in member；
The third multiplicity subunits of each Logical processing unit and the 4th various subunits, for respectively to from each signal
The local trigger signal of the received engineered safeguards features of processing unit is put to the vote, and the result of voting is sent to equipment interface mould
Block；The third multiplicity subunits of each Logical processing unit and the 4th various subunits are also used to from each
The local trip signal of the received shutdown of signal processing unit is put to the vote, and the shutdown breaker trigger signal that voting obtains is held
The shutdown breaker trigger signal that combination obtains is sent to corresponding shutdown breaker by capable or logical combination；
The shutdown breaker is for receiving shutdown breaker trigger signal, four formed according to shutdown breaker by hardwire
Two hard logics are taken to control reactor shutdown；
The device interface module, for receiving the driving instruction of the automatic driving instruction of engineered safeguards features, safety automation module
With non-safety dcs (Non-classified Distribution Control System, NC-DCS)
Driving instruction, priority ratio is carried out compared with being sent to corresponding equipment to driving instruction.
Further, the signal processing unit includes Signal Pretreatment subelement, threshold value comparison subelement and the first hair
Send subelement, in which:
Signal Pretreatment subelement, for obtaining measuring signal from corresponding sensor and improving into standard signal；
Threshold value comparison subelement decides whether to trigger shutdown for being compared according to the standard signal with preset threshold
The local trigger signal of local trip signal and/or engineered safeguards features；
First transmission sub-unit, for touching the part of the local trip signal of the shutdown and/or the engineered safeguards features
Signalling is sent to each Logical processing unit.
Further, the Logical processing unit includes receiving subelement, decides by vote subelement and the second transmission sub-unit,
In:
Receiving subelement, for receiving the local trip signal of the shutdown and/or the local trigger signal of engineered safeguards features；
Decide by vote subelement, shutdown breaker trigger signal is obtained for deciding by vote to the local trip signal of the shutdown, to described
The local trigger signal of engineered safeguards features is decided by vote to obtain the automatic driving instruction of engineered safeguards features；
Second transmission sub-unit is sent to shutdown breaker for the shutdown breaker trigger signal after combining, by same multiplicity
The automatic driving instruction of two-way engineered safeguards features of two control stations of temper group is respectively sent to same device interface module.
Further, the system also includes network module, gateway module, safety automation module, Core cooling monitorings
System, security control display module and alert process module, in which:
The network module includes data transmission station, the first safety level looped network, the second safety level looped network, first non-security grade of looped network
With second non-security grade of looped network, the data transmission station includes first data transmission unit and the second data transmission unit；
The gateway module includes the first gateway and the second gateway；
The safety automation module includes the first safety automation unit and the second safety automation unit；
First non-security grade of looped network is separately connected the first data transmission unit, the second data transmission unit, at alarm
Module and the first gateway are managed, sends the data to NC-DCS for the protection system；
The Core cooling monitoring system includes the first Core cooling monitoring unit and the second Core cooling monitoring unit；
The security control display module includes the first security control display unit and the second security control display unit；
The first data transmission unit and second data transmission unit are separately connected first various subunits and second
Various subunits；
The first safety level looped network and the second safety level looped network connect data transfer station, third multiplicity temper respectively
Unit, the 4th various subunits, safety automation module, Core cooling monitoring system and security control display module；
The first safety automation module connects the first facility interface unit, and the second safety automation module connects the second equipment
Interface unit；
Second non-security grade of looped network is separately connected all security control display modules and the second gateway；
First gateway, second gateway are connected respectively to NC-DCS.
Further, described first various subunits, the second various subunits, the third multiplicity temper list
First, described 4th various subunits, which are divided equally, not to be made of two control stations, wherein first various subunits and the second multiplicity
Two control stations of subunits are all made of hot backup redundancy and are arranged, and the two of third multiplicity subunits and the 4th various subunits
A control station is all made of parallel redundancy setting；
The first safety automation unit and the second safety automation unit by two hot backup redundancies control station group
At；
Each device interface module is made of multiple equipment interface hardware board；
Lubber-line, first heap are provided between the first Core cooling monitoring unit and the second Core cooling monitoring unit
The cooling monitoring unit of core and the second Core cooling monitoring unit are made of the control station of two hot backup redundancies；
Each security control display unit is by being set to master control room operator station, Special safety disk and long-range shutdown station operator
The safety level display control apparatus composition stood；
The first data transmission unit and the second data transmission unit are made of two parallel redundancy control stations；
First gateway and the second gateway are all made of two gateway compositions of parallel redundancy；
The first safety level looped network, the second safety level looped network, first non-security grade of looped network and second non-security grade of looped network are
Double-network redundant ring structure.
Further, the safety automation module is used to send driving instruction to device interface module, and the driving refers to
It enables and reactor is switched to safe shutdown state from controllable state for controlling.
Further, the Core cooling monitoring system is for acquiring core temperature and water level signal；
The Core cooling monitoring system is also used to control analog quantity adjustment equipment.
Further, first gateway is for realizing will protect the safety distributed AC servo system signal of system to be forwarded to
NC-DCS。
Further, second gateway is for realizing the life that NC-DCS is called to security control display unit display picture
Order is transmitted to the security control display unit.
The invention has the following beneficial effects:
The present invention utilizes the hierarchical design of signal processing module and logic processing module, shutdown and ad hoc signal acquisition, pre- place
Reason and threshold value comparison are by signal processing cabinet (Signal Process Cabinet, SPC) realization, shutdown and ad hoc driving logic
It is unified to be handled by logical process cabinet (Logical Process Cabinet, LPC), the network communication plate between SPC can be reduced
Card quantity, and the response time of ad hoc driving is significantly improved, conducive to the response to accident conditions, optimize the cloth of board in cabinet
It sets, Logical processing unit is arranged using parallel redundancy, and shutdown and the dispersion of ad hoc security implementation driving function may be implemented, effectively drop
Low control station load improves system response time.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the architecture diagram of the protection system provided in an embodiment of the present invention suitable for Small reactor.
Fig. 2 is shutdown functional block diagram provided in an embodiment of the present invention.
Fig. 3 is the detail view that Logical processing unit neutron cells provided in an embodiment of the present invention are connect with shutdown breaker.
Fig. 4 is Engineered safety feature actuation functional block diagram provided in an embodiment of the present invention.
Fig. 5 is the building-block of logic of signal processing unit provided in an embodiment of the present invention.
Fig. 6 is the building-block of logic of Logical processing unit provided in an embodiment of the present invention.
Fig. 7 is the architecture diagram of the protection system provided in an embodiment of the present invention suitable for Small reactor.
Fig. 8 is the structure chart of shutdown breaker control logic function provided in an embodiment of the present invention.
Specific embodiment
This patent core content is the separation of signal processing module and logic processing module, below in conjunction with drawings and examples
The system specific embodiment is described further.
The embodiment of the protection system provided by the invention suitable for Small reactor is described more fully below.
As shown in Figure 1, the embodiment of the present invention provides a kind of protection system suitable for Small reactor, the system comprises
Signal processing module 11, logic processing module 12, shutdown breaker 13 and device interface module 14, in which:
Signal processing module 11 includes multiple signal processing units, and signal processing unit has 3, including signal in the present embodiment
Processing unit 111, signal processing unit 112 and signal processing unit 113, each signal processing unit is by first various temper list
Member and second various subunits composition, such as signal processing unit 111 is by first various subunits 114 and the second diversity
Subelement 115 forms, and signal processing unit 112 is made of first various subunits 116 and second various subunits 117,
Signal processing unit 113 is made of first various subunits 118 and second various subunits 119.
Logic processing module 12 includes multiple Logical processing units, and logic processing module 12 includes logic in the present embodiment
Processing unit 121 and Logical processing unit 122, each Logical processing unit is by third multiplicity subunits and the 4th various temper
Unit composition, such as Logical processing unit 121 is by third multiplicity subunits 123 and the 4th various subunits 124, at logic
Unit 122 is managed by third multiplicity subunits 125 and the 4th various subunits 126；Logic processing module 12 includes A, B two
Sequence, Logical processing unit 121 are A sequence, and Logical processing unit 122 is B sequence.
It should be noted that first various subunits, the second various subunits, third multiplicity subunits and the 4th
Various subunits are made of two control stations, certain first various subunits and second various subunits in software and
It is not identical as third multiplicity subelement and the 4th various subunits on hardware；Wherein first various subunits and more than second
Two control stations of sample subunits are all made of hot backup redundancy setting, and the two is mutually backups；Third multiplicity subunits and the 4th
Two control stations of various subunits are all made of parallel redundancy setting.
The first various subunits 116 of various subunits 114, first and first various subunits 118 are respectively with the
Three various subunits 123 and third multiplicity subunits 125 connect, the second various temper list of various subunits 115, second
Member 117 and second various subunits 119 are connect with the 4th various subunits 124 and the 4th various subunits 126 respectively；
If there is more third multiplicity subunits in other embodiments, first various subunits with all third diversity
Subelement connection, same second various subunits are connect with the 4th various subunits；
Third multiplicity subunits 123 and the connection one simultaneously of the 4th various subunits 124 in same Logical processing unit 121
To shutdown breaker 131 and a pair of of shutdown breaker 132,125 He of third multiplicity subunits in same Logical processing unit 122
4th various subunits 126 connect a pair of of shutdown breaker 133 and a pair of of shutdown breaker 134 simultaneously, in the present embodiment
In have 4 pairs of shutdown breakers；The third multiplicity subunits 123 of same logic processing module 121 and the 4th diversity subgroup 124
Connect identical device interface module 141, the third multiplicity subunits 125 of same logic processing module 122 and the 4th multiplicity
Temper group 126 connects identical device interface module 142.
Each signal processing unit, for obtaining measuring signal from corresponding sensor, according to the measuring signal and in advance
If threshold value, decide whether to trigger the local trip signal of shutdown and/or the local trigger signal of engineered safeguards features, and will be described
The local trip signal of shutdown and/or the local trigger signal of the engineered safeguards features are sent to each logical process list
Corresponding multiplicity subunits in member.
It should be noted that each signal processing unit can correspond to one or more sensor；Preset threshold includes
Shutdown threshold value and ad hoc secure threshold determine the local trip signal of triggering shutdown when measuring signal is greater than shutdown threshold value；When
Measuring signal is greater than ad hoc secure threshold, determines the local trigger signal of triggering engineered safeguards features；When in signal processing unit
First various subunits determine the local trip signal of the shutdown of triggering and/or the local trigger signal of engineered safeguards features,
Third multiplicity subunits in each Logical processing unit are sent to, when second various subunits determine in signal processing unit
The local trip signal of the shutdown of triggering and/or the local trigger signal of engineered safeguards features, are sent to each logical process list
4th various subunits in member.
The third multiplicity subunits of each Logical processing unit and the 4th various subunits, for respectively to from each
The local trigger signal of the received engineered safeguards features of signal processing unit is put to the vote, and the result of voting is sent to equipment and is connect
Mouth mold block；
The third multiplicity subunits of each Logical processing unit and the 4th various subunits are also used to from every
The local trip signal for the shutdown that a signal processing unit receives is put to the vote, and the shutdown breaker that voting is obtained touches
Signal execution or logical combination, will combine obtained shutdown breaker trigger signal and be sent to corresponding shutdown breaker；
It should be noted that the result of voting includes shutdown breaker trigger signal and the automatic driving instruction of engineered safeguards features.
The shutdown breaker, for receiving shutdown breaker trigger signal；Pass through hardwire knot according to shutdown breaker
At four take two hard logics control reactor shutdown.
It should be noted that shutdown breaker takes two hard logics to control reactor shutdown by four, in order to improve
The reliability of shutdown.
The device interface module, for receiving the drive of engineered safeguards features automatic driving instruction, safety automation module
The driving instruction of dynamic instruction and NC-DCS carries out priority ratio compared with and driving signal being sent to corresponding equipment to driving instruction.
As shown in Fig. 2, the embodiment of the invention provides shutdown functional block diagrams.
Step acquisition 21 is executed by signal processing unit 111, the various subunits 114 of the first of signal processing unit 111
It is used to obtain measuring signal from the corresponding sensor of signal processing unit 111 with second various subunits 115；Step threshold
Compare 22 equally to be executed by signal processing unit 111, the various subunits 114 of the first of signal processing unit 111 are used for basis
The measuring signal and preset threshold decide whether the local trip signal for triggering shutdown and/or the part of engineered safeguards features
Trigger signal, and the shutdown signal or the engineered safeguards features action signal are sent to Logical processing unit 121
Third multiplicity subunits 123 and the 4th various subunits 124.
It should be noted that preset threshold includes shutdown threshold value and ad hoc secure threshold, when measuring signal reaches shutdown threshold
Value, triggers the local trip signal of shutdown；When measuring signal reaches ad hoc secure threshold, the part for triggering engineered safeguards features is touched
It signals.
Step meets logic 23 and is executed by Logical processing unit 121, the third multiplicity subunits of Logical processing unit 121
123 receive the local trip signal of shutdown, logical process list with first various subunits 114 from signal processing unit 111
The various subunits 124 of the 4th of member 121 are used to receive shutdown from second various subunits 115 of signal processing unit 111
Local trip signal；
Third multiplicity subunits 123 are also used to stop from first various subunits 116 and first various reception of subunits 118
The local trip signal of heap puts to the vote the local trip signal of the shutdown to obtain shutdown breaker trigger signal, third
Various subgroup 123 and the 4th various subunits 124 are also used to that the shutdown breaker trigger signal that voting obtains is executed or patrolled
Combination is collected, obtained shutdown breaker trigger signal will be combined and be sent to corresponding shutdown breaker.
It should be noted that put to the vote mean in three signals there are two or it is more than two be trigger signal, into
Shutdown breaker part trigger signal is obtained after row voting.
Step 24 executes or logical combination, indicates in figure using >=1；The third multiplicity temper of Logical processing unit 121
Unit 123 and the 4th various subunits 124 are also used to decide by vote the obtained execution of shutdown breaker trigger signal or logical groups
It closes, the shutdown breaker trigger signal that combination obtains is sent to corresponding a pair of of shutdown breaker 131.
Shutdown breaker 131 is formed according to shutdown breaker by hardwire for receiving shutdown breaker trigger signal
Four take two hard logics control reactor shutdown.
It should be noted that the work step of the 4th various subunits 124 is identical as third multiplicity subunits 123,
Third multiplicity subunits 123 also connect another shutdown breaker by hardwire with the 4th various subunits 124.
As shown in figure 3, the embodiment of the invention provides Logical processing unit neutron cells connect with shutdown breaker it is thin
Section figure.
In order to illustrate the principle of shutdown function triggering in Fig. 2, it is not provided with Logical processing unit neutron cells and stops
The detail view of heap breaker connection, is specifically introduced in the corresponding embodiment of Fig. 3.
Third multiplicity subunits 123 include control station 1231 and control station 1232, and the 4th various subunits 124 include
Control station 1241 and control station 1242, control station 1231 and control station 1241 are also used to decide by vote obtained shutdown breaker triggering
Signal executes or logical combination, and the shutdown breaker trigger signal that combination obtains is sent to corresponding shutdown breaker 131；Control
System station 1232 and control station 1242 are also used to decide by vote obtained shutdown breaker trigger signal execution or logical combination, will combine
Obtained shutdown breaker trigger signal is sent to corresponding shutdown breaker 132.
As shown in figure 4, the embodiment of the invention provides Engineered safety feature actuation functional block diagrams.
Step acquisition 31 is executed by signal processing unit 111, the various subunits 114 of the first of signal processing unit 111
For obtaining measuring signal from corresponding sensor, according to the measuring signal and preset threshold, decide whether to trigger shutdown
The local trigger signal of local trip signal or engineered safeguards features.In the present embodiment if measuring signal reaches ad hoc peace
Full threshold value triggers the local trigger signal of engineered safeguards features.
What control station 1231, control station 1232 indicated is two control stations of third multiplicity subunits 123, control in figure
Stand 1231 and control station 1232 from the first of signal processing unit 111 various subunits 114, signal processing unit 112 the
First various subunits 118 of one various subunits 116 and signal processing unit 113 receive engineered safeguards features
Local trigger signal, in the present embodiment, control station 1231 and control station 1232 are equivalent to from each signal processing unit and receive
To the local trigger signal of engineered safeguards features, the execution of control station 1231, which meets logic, decides by vote to obtain engineered safeguards features and drives automatically
Dynamic instruction, the same execution of control station 1232 meet logic and decide by vote to obtain ad hoc safety automation driving instruction；Control station 1231 and control
System station 1232 is by the automatic driving instruction sending device interface module 141 of engineered safeguards features.
Device interface module 141 is also used to receive safety automation for receiving the automatic driving instruction of engineered safeguards features
The driving instruction of module and the driving instruction of NC-DCS carry out priority ratio compared with being sent to corresponding equipment to driving instruction.
As shown in figure 5, the signal processing unit includes that signal is located in advance the embodiment of the invention provides signal processing unit
Manage subelement 41, threshold value comparison subelement 42 and the first transmission sub-unit 43, in which:
Signal Pretreatment subelement 41, for obtaining measuring signal from corresponding sensor and improving into standard signal；
It should be noted that the standard signal electric current improved in the present embodiment is 4-20mA.
Threshold value comparison subelement 42 decides whether to trigger for being compared according to the measuring signal with preset threshold
The local trip signal of shutdown and/or the local trigger signal of engineered safeguards features；
First transmission sub-unit 43, for by the part of the local trip signal of the shutdown and/or the engineered safeguards features
Trigger signal is sent to each Logical processing unit.
As shown in fig. 6, the Logical processing unit includes receiving son list the embodiment of the invention provides Logical processing unit
Member 51, voting subelement 52, logical operation subelement 53 and the second transmission sub-unit 54, in which:
Receiving subelement 51, for receiving the local trip signal of shutdown and/or the local trigger signal of engineered safeguards features；
Decide by vote subelement 52, shutdown breaker trigger signal is obtained for deciding by vote to the local trip signal of the shutdown, to institute
The local trigger signal for stating engineered safeguards features is decided by vote to obtain the automatic driving instruction of engineered safeguards features；
Second transmission sub-unit 53 will be same for the shutdown breaker trigger signal after combination to be sent to shutdown breaker
The automatic driving instruction of engineered safeguards features of two control stations of diversity subgroup is respectively sent to same device interface module.
As shown in fig. 7, the embodiment of the present invention provides a kind of protection system suitable for Small reactor, the system comprises
Correlation module and unit in the corresponding implementation of Fig. 1 further include network module, gateway module, safety automation module, Core cooling prison
Examining system, security control display module and alert process module, in which:
The network module includes that data transmission station, the first safety level looped network 153, the second safety level looped network 154, first are non-security
Looped network 155 and the second non-security looped network 156, the gateway module include the first gateway 161 and the second gateway 162, the data
Transfer station includes first data transmission unit 151 and the second data transmission unit 152；First non-security looped network 155 is separately connected
First data transmission unit 151, the second data transmission unit 152, alert process module 193, alert process module 194 and first
Gateway 161；The various subunits more than 116, second of first various subunits 114, first of the connection of first data transmission unit 151
Sample subunits 115 and second various subunits 117, the various subunits of the second data transmission unit 152 connection first
118 and the second various subunits 119；
It should also be noted that, the first gateway 161, the second gateway 162 are for protecting system to transmit data to NC-DCS, gateway
The functions such as network security protection, routing forwarding are played in heterogeneous networks.
Safety automation module includes the first safety automation unit 171 and the second safety automation unit 172；
It should be noted that the first safety automation unit 171 connects device interface module 143, the second safety automation unit
172 connection interface modules 144.
Device interface module includes device interface module 141, device interface module 142, device interface module 143 and equipment
Interface module 144；
It includes the first Core cooling monitoring unit 191 and the second Core cooling monitoring unit 192 that Core cooling, which monitors system,；
Security control display module includes the first security control display unit 181 and the second security control display unit 182；
First safety level looped network 153 connects the various temper of first data transmission unit 151, third multiplicity subunits the 123, the 4th
Unit 124, the first safety automation unit 171, security control display module 181 and the first Core cooling monitoring unit 191；
It should be noted that the various subunits 124 of third multiplicity subunits the 123, the 4th, first data transmission unit 151,
First safety level looped network 153, the first safety automation unit 171, security control display module 181 and the monitoring of the first Core cooling
Unit 191 belongs to A sequence.
Second safety level looped network 154 connects the second data transmission unit 152, the 125, the 4th multiplicity of third multiplicity subunits
Subunits 126, the second safety automation unit 172, security control display module 182 and the second Core cooling monitoring unit
192；First Core cooling monitoring unit 191 is connected and communicated with the second Core cooling monitoring unit 192.
It should be noted that third multiplicity subunits the 125, the 4th various subunits 126, the second data transmission unit
152, the second safety automation unit 172, security control display module 182 and the second Core cooling monitoring unit 192 belong to B system
Column；A/B series herein can be mutually redundant design, improve the safety and reliability of protection system.
It should be noted the first safety level looped network and the second safety level looped network, connect data respectively
Transfer station, third multiplicity subunits, the 4th various subunits, safety automation module, Core cooling monitoring system and peace
Full control display module, although the connection of the first safety level looped network is the first safety automation unit, the second safety level looped network connects
What is connect is the second safety automation unit.
Second non-security grade of looped network 156 is separately connected the first safe display control unit 181, the second safe display control list
Member 182 and second gateway 162, all security control display modules all connect the second non-security looped network in the present embodiment；
First gateway 161, the second gateway 162 are connected respectively to NC-DCS, and NC-DCS is not belonging to protection system.
It should be noted that safety automation module includes the first safety automation unit 171 and the second safety automation
Unit 172, the first safety automation unit 171 and the second safety automation unit 172 are by two hot backup redundancies
Control station composition；Each device interface module is made of multiple equipment interface hardware board；First Core cooling prison
It surveys between unit and the second Core cooling monitoring unit and is provided with lubber-line, the first Core cooling monitoring unit 191 and the
Two Core cooling monitoring unit 192 are made of the control station of two hot backup redundancies, school between two Core cooling monitoring unit
Directrix connection is that measurement data is calibrated between two Core cooling monitoring unit in order to realize；Each security control display is single
Member is by the safety level display control apparatus for being set to master control room operator station, Special safety disk and long-range shutdown station operator station
Composition；First data transmission unit 151 and the second data transmission unit 152 are made of two parallel redundancy control stations；First
Gateway 161 and the second gateway 162 are all made of two gateway compositions of parallel redundancy, and the first gateway 161 and the second gateway 162 all use
Two gateway compositions of parallel redundancy, improve network stabilization；First safety level looped network 153, the second safety level looped network 154, first
Non-security grade looped network 155 and second non-security grade of looped network 156 are double-network redundant ring structure, above-mentioned double-network redundant ring structure
Refer to double net parallel redundancy ring structures.
Safety automation module is used to send driving instruction to device interface module, and the driving instruction will be anti-for controlling
Heap is answered to be switched to safe shutdown state from controllable state.
Core cooling monitoring system is for acquiring core temperature and water level signal；The Core cooling detection system is also used to
Control analog quantity adjustment equipment.
First gateway is used to the control system signal that safety level DCS system is sent being forwarded to NC-DCS.
Second gateway is used to call the order of the operation screen of security control display unit to forward the safety NC-DCS
Control display unit.
As shown in figure 8, protection system A sequence and B sequence respectively have 2 protection channels, it is disconnected that each protection channel controls 1 pair of shutdown
Road device, 4 pairs of shutdown breakers realize that four take two control logic function by connection in series and parallel.Connection based on shutdown breaker
Mode, when only 1 pair of breaker receives channel shutdown signal, tripping will not trigger reactor shutdown, when at least two is logical
When road issues scram signal, reactor breaker is disconnected, then the connection supply lines between stick power-supply system and rod control system
Road disconnects, and the electrical source of power of control rod drive mechanism is cut off in rod control system, and control rod falls into reactor core by self gravity, real
Existing emergency shut-down.
The present invention utilizes the hierarchical design of signal processing module and logic processing module, so that conversion speed is accelerated,
And logic processing module exclusively carries out shutdown logic and Engineered safety feature actuation processing, improves engineered safeguards features response
Time, and phase intercommunication is not needed between each signal processing unit after being layered due to the two between signal processing module
Letter, reduces communication card quantity, optimizes the arrangement of board in cabinet, and Logical processing unit, can be with using parallel redundancy setting
It realizes shutdown and the dispersion of ad hoc security implementation driving function, control station load is effectively reduced, improve system response time.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (9)
1. a kind of protection system suitable for Small reactor, which is characterized in that the system comprises signal processing modules, logic
Processing module, device interface module and shutdown breaker, in which:
The signal processing module includes multiple signal processing units, each signal processing unit by first various subunits and
Second various subunits composition；
The logic processing module includes multiple Logical processing units, each Logical processing unit by third multiplicity subunits and
4th various subunits composition；
All first various subunits connects with all third multiplicity subunits, all second multiplicity subunits with
All four various subunits connect, third multiplicity subunits and the 4th various subunits in same Logical processing unit
A pair of of shutdown breaker, the third multiplicity subunits of same Logical processing unit and the 4th various subunits are connected simultaneously
It is all connected with identical device interface module；
Each signal processing unit, for obtaining measuring signal from corresponding sensor, according to the measuring signal and in advance
If threshold value, decide whether to trigger the local trip signal of shutdown and/or the local trigger signal of engineered safeguards features, and will be described
The local trip signal of shutdown and/or the local trigger signal of the engineered safeguards features are sent to each logical process list
Corresponding multiplicity subunits in member；
The third multiplicity subunits of each Logical processing unit and the 4th various subunits, for respectively to from each signal
The local trigger signal of the received engineered safeguards features of processing unit is put to the vote, by the result sending device interface mould of voting
Block；
The third multiplicity subunits of each Logical processing unit and the 4th various subunits are also used to from every
The local trip signal of a received shutdown of signal processing unit is put to the vote, the shutdown breaker trigger signal that voting is obtained
Execution or logical combination will combine obtained shutdown breaker trigger signal and be sent to corresponding shutdown breaker；
The shutdown breaker is formed according to shutdown breaker by hardwire for receiving shutdown breaker trigger signal
Four take two hard logics to control reactor shutdown；
The device interface module, the driving for receiving engineered safeguards features automatic driving instruction, safety automation module refer to
It enables and the driving instruction of non-safety dcs, priority ratio is carried out compared with being sent to corresponding equipment to driving instruction.
2. the system as claimed in claim 1, which is characterized in that the signal processing unit include Signal Pretreatment subelement,
Threshold value comparison subelement and the first transmission sub-unit, in which:
Signal Pretreatment subelement, for obtaining measuring signal from corresponding sensor and improving into standard signal；
Threshold value comparison subelement decides whether to trigger shutdown for being compared according to the standard signal with preset threshold
The local trigger signal of local trip signal and/or engineered safeguards features；
First transmission sub-unit, for touching the part of the local trip signal of the shutdown and/or the engineered safeguards features
Signalling is sent to each Logical processing unit.
3. system as claimed in claim 2, which is characterized in that the Logical processing unit includes receiving subelement, voting
Unit, logical operation subelement and the second transmission sub-unit, in which:
Receiving subelement, the part triggering of local trip signal and/or the engineered safeguards features for receiving the shutdown
Signal；
Decide by vote subelement, shutdown breaker trigger signal is obtained for deciding by vote to the local trip signal of the shutdown, to described
The local trigger signal of engineered safeguards features is decided by vote to obtain the automatic driving instruction of engineered safeguards features；
Second transmission sub-unit will be same more for the shutdown breaker trigger signal after combination to be sent to shutdown breaker
The automatic driving instruction of two-way engineered safeguards features of two control stations of sample temper group is respectively sent to same device interface module.
4. system as claimed in claim 3, which is characterized in that the system also includes network module, gateway module, safety certainly
Dynamicization module, Core cooling monitoring system, security control display module and alert process module, in which:
The network module includes data transmission station, the first safety level looped network, the second safety level looped network, first non-security grade of looped network
With second non-security grade of looped network, the data transmission station includes first data transmission unit and the second data transmission unit；
The gateway module includes the first gateway and the second gateway；
The safety automation module includes the first safety automation unit and the second safety automation unit；
First non-security grade of looped network is separately connected the first data transmission unit, the second data transmission unit, at alarm
Module and the first gateway are managed, sends the data to non-safety dcs NC-DCS for the protection system；
The Core cooling monitoring system includes the first Core cooling monitoring unit and the second Core cooling monitoring unit；
The security control display module includes the first security control display unit and the second security control display unit；
The first data transmission unit and second data transmission unit are separately connected first various subunits and second
Various subunits；
The first safety level looped network and the second safety level looped network connect data transfer station, third multiplicity temper respectively
Unit, the 4th various subunits, safety automation module, Core cooling monitoring system and security control display module；
Second non-security grade of looped network is separately connected all security control display modules and the second gateway；
First gateway, second gateway are connected respectively to NC-DCS.
5. system as claimed in claim 4, which is characterized in that described first various subunits, second various temper
Unit, the third multiplicity subunits, the 4th various subunits, which are divided equally, not to be made of two control stations, wherein first
Two control stations of various subunits and second various subunits are all made of hot backup redundancy setting, third multiplicity subunits
Parallel redundancy setting is all made of with two control stations of the 4th various subunits；
The first safety automation unit and the second safety automation unit by two hot backup redundancies control station group
At；
Each device interface module is made of multiple equipment interface hardware board；
Lubber-line, first heap are provided between the first Core cooling monitoring unit and the second Core cooling monitoring unit
The cooling monitoring unit of core and the second Core cooling monitoring unit are made of the control station of two hot backup redundancies；
Each security control display unit is by being set to master control room operator station, Special safety disk and long-range shutdown station operator
The safety level display control apparatus composition stood；
The first data transmission unit and the second data transmission unit are made of two parallel redundancy control stations；
First gateway and the second gateway are all made of two gateway compositions of parallel redundancy；
The first safety level looped network, the second safety level looped network, first non-security grade of looped network and second non-security grade of looped network are
Double-network redundant ring structure.
6. system as claimed in claim 4, which is characterized in that the safety automation module is used to send out to device interface module
Driving instruction is sent, reactor is switched to safe shutdown state from controllable state for controlling by the driving instruction.
7. system as claimed in claim 4, which is characterized in that Core cooling monitoring system for acquire core temperature and
Water level signal；
The Core cooling monitoring system is also used to control analog quantity adjustment equipment.
8. system as claimed in claim 4, which is characterized in that the safety that first gateway is used to send system is distributed
Formula control system signal is forwarded to NC-DCS.
9. system as claimed in claim 4, which is characterized in that second gateway is used to show NC-DCS calling security control
Show that unit shows that the order of picture is transmitted to the security control display unit.
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