CN105549433B - Nuclear power plant's radiation monitoring system and signal transmission control method therein - Google Patents
Nuclear power plant's radiation monitoring system and signal transmission control method therein Download PDFInfo
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- CN105549433B CN105549433B CN201510927261.2A CN201510927261A CN105549433B CN 105549433 B CN105549433 B CN 105549433B CN 201510927261 A CN201510927261 A CN 201510927261A CN 105549433 B CN105549433 B CN 105549433B
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
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Abstract
The present invention provides a kind of nuclear power plant's radiation monitoring system and signal transmission control method therein, is related to nuclear power plant field, can avoid the non-security grade for being transferred to DCS system and without the dropout of chain control function, improve the reliability of KRT systems and DCS system.Nuclear power plant's radiation monitoring system includes field monitoring equipment, field monitoring equipment is connect with digital computer control system DCS system, field monitoring equipment obtains the field monitoring signal including primary scene monitoring signals, and the field monitoring signal including primary scene monitoring signals is sent to DCS system, primary scene monitoring signals are for non-security grade and without the signal of chain control function.
Description
Technical field
The present invention relates to nuclear power plant field more particularly to a kind of nuclear power plant's radiation monitoring system and signal transmission controls therein
Method processed.
Background technology
Radiation monitoring system (full name in English in factory is provided in nuclear power plant：Plant Radiation Monitoring
System, French abbreviation：KRT, referred to as radiation monitoring system or KRT systems in this specification), for npp safety screen
The Radiation monitoring of barrier, effluent, workplace triggers alarm when realizing radiation value superthreshold.
KRT systems are divided into two levels according to the transmittance process of data：Scene equipment level, presentation of information process layer.Scene
Mechanical floor includes radiation monitoring device on the spot (or being field monitoring equipment), for generating field monitoring signal and triggering superthreshold
Value alarm, fault alarm.Signal display processing layer include KRT system servers (in this specification be referred to as KRT servers) and
DCS (Digital Control System, digital computer control system), for being received to field monitoring signal,
Storage, display, processing.More specifically, KRT servers are used to provide information to radiation protection officer, maintenance of equipment personnel, and
DCS system is used to provide information to NPP Operations Personnel.
Field monitoring signal can be divided into two kinds, there is the letter of chain control relationship one is safety level signal or with process equipment
Number, another kind is non-safety level and without the signal of chain control function.Two kinds of signals are both needed to send to KRT servers and DCS system.
Fig. 1 is the transmission schematic diagram of field monitoring signal in existing KRT systems.As shown in Figure 1, on the one hand, safety level signal or with
Process equipment has the signal of chain control relationship to be routed directly to DCS system using hardwire；On the other hand, two kinds of monitoring signals are equal
Be sent into KRT servers by communication link, and be sent into the non-security grade of KRT servers and signal without chain control function again
By another communication link DCS system is sent to from KRT servers.
During the transmission field monitoring signal for stating the prior art in realization, inventor has found in the prior art at least
There are the following problems：Since KRT servers there are problems that easily crashing, DCS system is forwarded to by KRT servers
Non-security grade and signal without chain control function can loss of data frequent occurrence, cause DCS system that can not obtain complete non-
Safety level and without the signal of chain control function, the reliability of KRT systems and DCS system is poor.
Invention content
The present invention provides a kind of nuclear power plant's radiation monitoring system and signal transmission control method therein, can avoid transmitting
Non-security grade to DCS system and without the dropout of chain control function, improves the reliability of KRT systems and DCS system.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that：
In a first aspect, a kind of nuclear power plant's radiation monitoring system, including field monitoring equipment are provided, the field monitoring equipment
It is connect with digital computer control system DCS system, the field monitoring equipment acquisition includes that primary scene monitoring signals exist
Interior field monitoring signal, and the field monitoring signal including primary scene monitoring signals is sent to the DCS system,
The primary scene monitoring signals are for non-security grade and without the signal of chain control function.
With reference to first aspect, at it in the first possible realization method, the field monitoring signal further includes second existing
Field monitoring signals, the secondary scene monitoring signals are safety level signal or the signal for having chain control relationship with process equipment；
Nuclear power plant's radiation monitoring system includes that point primary scene monitoring device of row configuration is set with secondary scene monitoring
Standby, the primary scene monitoring device is used to obtain the primary scene monitoring signals, the secondary scene prison from radiation scene
Measurement equipment is used to obtain the secondary scene monitoring signals from radiation scene；
The primary scene monitoring device sends the primary scene monitoring signals to the DCS system, and described second is existing
Field monitoring device sends the secondary scene monitoring signals to the DCS system.
The possible realization method of with reference to first aspect the first further includes in its second possible realization method
Power plant's radiation monitoring system KRT servers, the KRT servers have KRT communication modules；
The DCS system has DCS communication modules, the company of communicating between the DCS communication modules and the KRT communication modules
It connects, the KRT communication modules receive the field monitoring signal from the DCS communication modules.
Second of possible realization method with reference to first aspect, in its third possible realization method,
The primary scene monitoring device includes the first detector, primary scene signal display processing unit and the first wiring
Case, first detector are connect with the primary scene signal display processing unit, the primary scene signal display processing
Unit is connect with first junction box；
The secondary scene monitoring device includes the second detector, secondary scene signal display processing unit and the second wiring
Case, second detector are connect with the secondary scene signal display processing unit, the secondary scene signal display processing
Unit is connect with second junction box；
First detector is used to obtain the first measuring signal, the primary scene signal display processing from radiation scene
Unit, which is used to receive first measuring signal from first detector and be determined according to first measuring signal, the first to be surpassed
Threshold Alerts signal, the first superthreshold alarm signal indicate that first measuring signal has exceeded threshold value, and described first is existing
Field monitoring signals include first measuring signal and the first superthreshold alarm signal；
Second detector is used to obtain the second measuring signal, the secondary scene signal display processing from radiation scene
Unit, which is used to receive second measuring signal from second detector and be determined according to second measuring signal, the second to be surpassed
Threshold Alerts signal, the second superthreshold alarm signal indicate that second measuring signal has exceeded threshold value, and described second is existing
Field monitoring signals include second measuring signal and the second superthreshold alarm signal；
The DCS system obtains the primary scene monitoring signals via first junction box, is connect via described second
Line case obtains the secondary scene monitoring signals.
The third possible realization method with reference to first aspect, in its 4th kind of possible realization method,
Between the DCS system and the primary scene signal display processing unit, the DCS system and described second existing
Between field signal display processing unit, respectively it is configured with and is exclusively used in transmitting first measuring signal or the second measurement letter
Number the first connecting line, be exclusively used in transmitting the second of the first superthreshold alarm signal or the second superthreshold alarm signal
Connecting line；
Nuclear power plant's radiation monitoring system further includes being set to radiation value to concentrate less than the safety level in the region of preset value
Formula junction box and non-security grade centralization junction box；
The input terminal of the safety level centralization junction box is connect with first junction box, output end and the DCS systems
System connection；
The input terminal of the non-security grade centralization junction box is connect with first junction box, output end and the DCS
System connects；
In the safety level centralization junction box and the non-security grade centralization junction box, first connecting line is straight
It connected, series connection is for controlling the alarm inhibition switch that second connecting line is turned on or off on second connecting line.
The 4th kind of possible realization method with reference to first aspect, in its 5th kind of possible realization method,
The safety level centralization junction box is two or more, and each safety level centralization junction box is separately connected institute
State primary scene monitoring device.
Second aspect provides the signal transmission control method in a kind of nuclear power plant's radiation monitoring system, is applied to first party
In nuclear power plant's radiation monitoring system described in face, nuclear power plant's radiation monitoring system includes field monitoring equipment, and feature exists
In the field monitoring equipment is connect with digital computer control system DCS system, is included the following steps：
Primary scene monitoring signals transmitting step, wherein the field monitoring equipment acquisition includes primary scene monitoring letter
Field monitoring signal including number, and the field monitoring signal including primary scene monitoring signals is sent to the DCS
System, the primary scene monitoring signals are for non-security grade and without the signal of chain control function.
In conjunction with second aspect, at it in the first possible realization method, the field monitoring signal further includes second existing
Field monitoring signals, the secondary scene monitoring signals are safety level signal or the signal for having chain control relationship with process equipment；
Nuclear power plant's radiation monitoring system includes that point primary scene monitoring device of row configuration is set with secondary scene monitoring
Standby, the primary scene monitoring device is used to obtain the primary scene monitoring signals, the secondary scene prison from radiation scene
Measurement equipment is used to obtain the secondary scene monitoring signals from radiation scene；
The primary scene monitoring signals transmitting step specifically includes：The primary scene monitoring device is to the DCS systems
System sends the primary scene monitoring signals；
The signal transmission control method further includes：Secondary scene monitoring signals transmitting step, wherein the secondary scene
Monitoring device sends the secondary scene monitoring signals to the DCS system.
In conjunction with the first possible realization method of second aspect, in its second possible realization method, the core
Power plant's radiation monitoring system further includes power plant's radiation monitoring system KRT servers, and the KRT servers have KRT communication modules；
The DCS system has DCS communication modules, and the DCS communication modules are connected with KRT communication modules communication；
The signal transmission control method further includes：Field monitoring signal forwarding step, wherein the KRT communication modules
The field monitoring signal is received from the DCS communication modules.
In conjunction with second of possible realization method of second aspect, in its third possible realization method, described
One field monitoring equipment includes the first detector, primary scene signal display processing unit and the first junction box, and described first visits
It surveys device to connect with the primary scene signal display processing unit, the primary scene signal display processing unit and described first
Junction box connects；
The secondary scene monitoring device includes the second detector, secondary scene signal display processing unit and the second wiring
Case, second detector are connect with the secondary scene signal display processing unit, the secondary scene signal display processing
Unit is connect with second junction box；
The primary scene monitoring signals transmitting step specifically includes：First detector obtains first from radiation scene
Measuring signal, the primary scene signal display processing unit receive first measuring signal and root from first detector
Determine that the first superthreshold alarm signal, the first superthreshold alarm signal indicate that described first surveys according to first measuring signal
Amount signal has exceeded threshold value, and the primary scene monitoring signals include that first measuring signal is alarmed with first superthreshold
Signal, the DCS system obtain the primary scene monitoring signals via first junction box；
The secondary scene monitoring signals transmitting step specifically includes：Second detector obtains second from radiation scene
Measuring signal, the secondary scene signal display processing unit receive second measuring signal and root from second detector
Determine that the second superthreshold alarm signal, the second superthreshold alarm signal indicate that described second surveys according to second measuring signal
Amount signal has exceeded threshold value, and the secondary scene monitoring signals include that second measuring signal is alarmed with second superthreshold
Signal, the DCS system obtain the secondary scene monitoring signals via second junction box.
In conjunction with the third possible realization method of second aspect, in its 4th kind of possible realization method, the DCS
Between system and the primary scene signal display processing unit, the DCS system and the secondary scene signal display processing
Between unit, it is respectively configured with the first connection for being exclusively used in transmitting first measuring signal or second measuring signal
Line is exclusively used in transmitting the second connecting line of the first superthreshold alarm signal or the second superthreshold alarm signal；
Nuclear power plant's radiation monitoring system further includes being set to radiation value to concentrate less than the safety level in the region of preset value
Formula junction box and non-security grade centralization junction box；
The input terminal of the safety level centralization junction box is connect with first junction box, output end and the DCS systems
System connection；
The input terminal of the non-security grade centralization junction box is connect with first junction box, output end and the DCS
System connects；
In the safety level centralization junction box and the non-security grade centralization junction box, first connecting line is straight
It connected, series connection is for controlling the alarm inhibition switch that second connecting line is turned on or off on second connecting line；
The signal transmission control method further includes：Alarm signal rate-determining steps, wherein the alarm inhibits switch control
Second connecting line is turned on or off.
In nuclear power plant's radiation monitoring system provided by the invention and signal transmission control method therein, DCS system obtains
Non-security grade and signal, that is, primary scene monitoring signals without chain control function need not move through KRT servers, relative to existing
Primary scene monitoring signals need to be obtained by KRT servers and be transmitted to by KRT servers the transmission mode of DCS system in technology,
Reduce data acquisition intermediate link, therefore, the transmission of primary scene monitoring signals is not unstable by KRT server contention states
Influence, the primary scene monitoring signals that can avoid being transferred to DCS system lose, and improve the reliable of KRT systems and DCS system
Property.
Description of the drawings
Illustrate the embodiment of the present invention or technical solution in the prior art in order to clearer, to embodiment or will show below
There is attached drawing needed in technology to be briefly described, it should be apparent that, the accompanying drawings in the following description is only the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the transmission schematic diagram of field monitoring signal in existing KRT systems；
Fig. 2 is the structural schematic diagram for nuclear power plant's radiation monitoring system that the embodiment of the present invention one provides；
Fig. 3 is the structural schematic diagram of nuclear power plant's radiation monitoring system provided by Embodiment 2 of the present invention；
Fig. 4 is that the first connecting line and the second connecting line pass through schematic diagram in centralized junction box.
Specific implementation mode
The technical solution of the embodiment of the present invention is clearly and completely described below in conjunction with the accompanying drawings, it is clear that described
Embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without making creative work, belongs to the present invention
The range of protection.
Embodiment one
Fig. 2 is the structural schematic diagram for nuclear power plant's radiation monitoring system that the embodiment of the present invention one provides.As shown in Fig. 2, spoke
It penetrates monitoring system (or being KRT systems) and is divided into signal display processing layer and scene equipment level.Signal display processing layer is according to institute
Difference towards personnel is divided into DCS system 10 and KRT servers 201.DCS system 10 includes data gather computer cabinet 101, communication mould
(in order to be different from the communication module of following KRT server sides, communication module 102 herein is known as DCS communication modules to block 102
102)。
Data gather computer cabinet 101 is connect with the equipment (such as aftermentioned field monitoring equipment 300) of scene equipment level, is used for
From scene equipment level collection site monitoring signals.It can be by connecing firmly between data gather computer cabinet 101 and the equipment of scene equipment level
Line connects.Data gather computer cabinet 101 may be configured as multiple, and three, respectively 101a, 101b, 101c are shown in FIG. 2.
Although not shown in Fig. 2, DCS system 10 has the equipment such as control processor and display, control processor
Field monitoring signal can be obtained from data gather computer cabinet 101 and it is handled etc..Display is connect with control processor, can
The corresponding informance handled according to field monitoring signal is shown to NPP Operations Personnel.
One end of DCS communication modules 102 can be connect by DCS interchangers 103 with data gather computer cabinet 101, also can be direct
It is connect with data gather computer cabinet 101.Wherein, DCS interchangers 103 in the case of high-volume data in data gather computer cabinet
Interim data between 101 and DCS communication modules 102.201 side of other end connection KRT servers of DCS communication modules 102 leads to
Interrogate module 202, i.e. KRT communication modules 202.DCS system 10 can be sent by DCS communication modules 102 to KRT communication modules 202
Data.As described below, DCS communication modules 102 can send various field monitoring signals to KRT communication modules 202.
Scene equipment level includes mainly the field monitoring equipment of the parameters such as the radiation value for detecting each monitoring point of nuclear power plant
300.Multiple row can be arranged in field monitoring equipment 300, and the parameter for detecting different stage or type obtains different types of scene
Monitoring signals.In the example shown in Fig. 2, field monitoring equipment 300 is divided for three row, respectively 300a, 300b, 300c.For example,
According to the difference of security level, field monitoring signal may include non-security grade and without chain control function signal (present invention in
Referred to as primary scene monitoring signals), safety level signal or with process equipment have chain control relationship signal (present invention in be known as
Secondary scene monitoring signals).
In the present embodiment, the DCS system 10 in radiation monitoring system is closed by the connection with field monitoring equipment 300
System directly obtains the field monitoring signal including primary scene monitoring signals, that is, scene prison from field monitoring equipment 300
Field monitoring signal including primary scene monitoring signals is sent to DCS system 10 by measurement equipment 300.
Middle primary scene detection signal need to be obtained by KRT servers compared with the existing technology, and be transmitted to by KRT servers
The transmission mode of DCS system, the embodiment of the present invention one provide transmission mode in DCS system 10 obtain primary scene detect signal
Need not move through KRT servers 201, reduce data acquisition intermediate link, therefore, primary scene detect signal transmission not by
The influence of 201 unstable working condition of KRT servers can avoid the primary scene detection signal for being transferred to DCS system 10 from losing
It loses, improves the reliability of KRT systems and DCS system.
In addition, according to embodiments of the present invention one transmission mode provided need to only supervised without extensive change configuration
It is simply connected up between the field monitoring equipment 300 and DCS system 10 of survey primary scene detection signal, wiring cost
Low, installation work is easy to implement, and therefore, the transmission mode the KRT systems of existing nuclear power plant suitable for promoting.
Embodiment two
The transmission mode that the present embodiment is used to obtain KRT servers 201 field monitoring signal illustrates.
As shown in Fig. 2, nuclear power plant's radiation monitoring system includes a point primary scene monitoring device 300a and second for row configuration
Field monitoring equipment 300b, 300c.Primary scene monitoring device 300a is for monitoring primary scene monitoring signals, secondary scene prison
Measurement equipment 300b, 300c are for monitoring secondary scene monitoring signals.DCS system 10 obtains the from primary scene monitoring device 300a
One field monitoring signal, and obtain primary scene monitoring signals from secondary scene monitoring device 300b, 300c.
More specifically, data gather computer cabinet 101 divides acquires cabinet 101a and the acquisition of safe level data for non-security level data
Cabinet 101b, 101c.Non-security level data acquisition cabinet 101a is connect with primary scene monitoring device 300a, is supervised from primary scene
Measurement equipment 300a is obtained and primary scene monitoring signals.Safety level data gather computer cabinet 101b and secondary scene monitoring device 300b
Connection, safety level data gather computer cabinet 101c are connect with secondary scene monitoring device 300c, safety level data gather computer cabinet 101b,
101c obtains secondary scene monitoring signals from secondary scene monitoring device 300b, 300c respectively.
In signal display processing layer, KRT communication modules 202 and the communication of DCS communication modules 102 of KRT servers 201 connect
It connects.DCS communication modules 102 are obtained from non-security level data acquisition cabinet 101a and safety level data gather computer cabinet 101b, 101c
The field monitoring signal arrived, and KRT communication modules 202 are sent to, KRT communication modules 202 receive the field monitoring signal, by
This, KRT servers 201 can also obtain field monitoring signal.
According to signal transmission form provided in this embodiment, field monitoring equipment 300 to KRT servers 201 is not necessarily to wiring,
Communication module is set without towards field monitoring equipment 300 in 201 side of KRT servers, therefore, it is possible to simplify KRT systems
Line construction reduces the wiring cost of KRT systems.
Embodiment three
Fig. 3 is the structural schematic diagram for nuclear power plant's radiation monitoring system that the embodiment of the present invention three provides.
In the present embodiment, monitoring device 300a in primary scene is shown including the first detector 301a, primary scene signal
Processing unit 302a and the first junction box 303a, the first detector 301a and primary scene signal display processing unit 302a connects
It connects, primary scene signal display processing unit 302a is connect with the first junction box 303a.
Secondary scene monitoring device 300b include the second detector 301b, secondary scene signal display processing unit 302b and
Second junction box 303b, the second detector 301b is connect with secondary scene signal display processing unit 302b, secondary scene signal
Display processing unit 302b is connect with the second junction box 303b.
Secondary scene monitoring device 300c include the second detector 301c, secondary scene signal display processing unit 302c and
Second junction box 303c, the second detector 301c is connect with secondary scene signal display processing unit 302c, secondary scene signal
Display processing unit 302c is connect with the second junction box 303c.
Although herein with primary scene signal display processing unit 300a for one, secondary scene monitoring device 300b,
300c is two and illustrates, but they of the invention quantity does not limit, can according to safety classification, row are other is set
It is fixed.
First detector 301a is used to obtain the first measuring signal from radiation scene, wherein the first measuring signal belongs to first
The part of measured value in field monitoring signal.Other than the part of measured value, primary scene monitoring signals further include alarm
The part of instruction comprising aftermentioned first superthreshold alarm signal.
Primary scene signal display processing unit 302a is used to receive the first measuring signal from the first detector 301a, and right
The first acquired measuring signal is shown or is handled.For example, determining the first superthreshold alarm signal according to the first measuring signal
Number.Specifically, primary scene signal display processing unit 302a may compare the first measuring signal and corresponding threshold value, determine first
Whether measuring signal exceeds threshold value, when the first measuring signal exceeds threshold value, the first superthreshold alarm signal is obtained, for indicating
First measuring signal has exceeded corresponding threshold value.As described above, primary scene monitoring signals include the first of measured value part
First superthreshold alarm signal of measuring signal and alarm command part.
Similarly, second detector 301b, 301c is used to obtain the second measuring signal from radiation scene, wherein second measures
Signal belongs to the part of measured value in the monitoring signals of the secondary scene.Other than the part of measured value, secondary scene monitoring letter
It number further include the part of alarm command comprising aftermentioned second superthreshold alarm signal.
The secondary scene signal display processing unit 302b, 302c are used to receive second from second detector 301b, 301c and survey
Signal is measured, and the second acquired measuring signal is shown or handled.The second surpass for example, being determined according to the second measuring signal
Threshold Alerts signal.Specifically, secondary scene signal display processing unit 302b, 302c may compare the second measuring signal with it is corresponding
Threshold value, determine the second measuring signal whether exceed threshold value, when the second measuring signal exceed threshold value when, obtain the second superthreshold report
Alert signal, for indicating that the second measuring signal has exceeded corresponding threshold value.As described above, secondary scene monitoring signals include measuring
Second measuring signal of numerical part and the second superthreshold alarm signal of alarm command part.
The non-security level data acquisition cabinet 101a of DCS system is aobvious from primary scene signal via the first junction box 303a
Show that processing unit 302a acquisitions include the primary scene monitoring signals of the first measuring signal and the first superthreshold alarm signal.DCS
Safety level data gather computer cabinet 101b, 101c of system is via second junction box 303b, 303c, from from the secondary scene, signal is shown
Reason unit 302b, 302c acquisition includes the secondary scene monitoring signals of the second measuring signal and the second superthreshold alarm signal.
First or second measuring signal is transferred to DCS system and is shown, handled or forwarded for DCS system, first or
Second superthreshold alarm signal is transferred in the master control room of DCS system, controls emergency alarm bell progress superthreshold alarm (not shown).
In the present embodiment, it is configured with and is exclusively used between DCS system 10 and primary scene signal display processing unit 302a
The second connecting line 306 for transmitting the first connecting line 305 of the first measuring signal, being exclusively used in the first superthreshold alarm signal of transmission.
Similarly, DCS system 10 and secondary scene signal display processing unit 302b or secondary scene signal display processing unit 302c
Between, configured be exclusively used in transmission the second measuring signal the first connecting line 305, be exclusively used in transmission the second superthreshold alarm signal
The second connecting line 306.
In the prior art, field monitoring signal is exported with superthreshold alarm signal from on-site signal display processing unit
Afterwards, it is transmitted to the junction box being connect with on-site signal display processing unit, then is transmitted to the data gather computer cabinet of DCS system.And
And switch of the setting for cutting off the transmission of superthreshold alarm signal in junction box.When the event such as power down occurs for field monitoring equipment
When barrier, fault alarm can be sent out, at the same can also field monitoring signal superthreshold alarm, in this case, in order to avoid report
Monitoring of the alert interference master control room operator to radioactivity state in factory, it is necessary to first inhibit superthreshold alarm, then to failure
Field monitoring equipment is handled.For this purpose, operator need to go to the switch in execute-in-place junction box, superthreshold alarm signal is cut off
Transmission.Since junction box is configured in the relatively high environment of radiation value, go to the operator that scene is operated quilt
It is exposed in stronger radiation environment, is unfavorable for reducing the occupational exposure of operator.
In order to solve that operator in the prior art need to go to the alarm of scene cut-out superthreshold and to cause operator to bear more
The problem of radiation, in the present embodiment, radiation monitoring system further include being set to non-peace of the radiation value less than the region of preset value
Full grade centralization junction box 304a and safety level centralization junction box 304b, 304c.Wherein, non-security grade centralization junction box
The input terminal of 304a connect 303a connections, the non-security level data acquisition cabinet of output end and DCS system with the first junction box
101a connections.The input terminal of safety level centralization junction box 304b, 304c connect 303b, 303c connection with the second junction box, defeated
Safety level data gather computer cabinet 101b, 101c of outlet and DCS system are connected.
Here, to how to solve operator need to go to scene cut-out superthreshold alarm and cause operator to bear more radiation
The problem of illustrate.As shown in figure 4, non-security grade centralization junction box 304a and safety level centralization junction box 304b,
In 304c, for being exclusively used in the first connecting line 305 of transmission field monitoring signal, it can be arranged so that the first connecting line 305 is not done
Any processing directly passes through centralized junction box 304a, 304b, 304c.For being exclusively used in the second of transmission superthreshold alarm signal
Connecting line 306 can connect on the second connecting line 306 and be opened for controlling the alarm inhibition that the second connecting line 306 is turned on or off
307 are closed, the operable alarm of operator inhibits switch 307 to cut off the second connecting line 306, to cut off superthreshold alarm signal
Transmission, it is suppressed that superthreshold is alarmed.In fig. 4 it is shown that the channel that two-way is mutually isolated, channel includes at least two simultaneously all the way
The first capable connecting line 305, another paths also include at least two the second parallel connecting lines 306.Corresponding to each concentration
The quantity of the signal transmitted needed for formula junction box 304a, 304b, 304c, connecting line 305,306 therein can be arranged more.
Since non-security grade centralization junction box 304a and safety level centralization junction box 304b, 304c are set to radiation value
Less than the region of preset value, therefore, even if operator, which need to come region operation alarm, inhibits switch, will not be exposed to relatively strong
Radiation environment in, therefore operator can be avoided to bear more radiation.
It should be noted that for non-security grade centralization junction box 304a and safety level centralization junction box 304b,
304c and residing region, can be determined according to the case where radiation value, that is, are less than radiation value and are less than the region of preset value, and be somebody's turn to do
The universal standard that preset value can refer to nuclear power plant is set, and the present invention does not limit this.
In addition, for two safety levels centralization junction box 304b, 304c, they are to execute safety level work(with reference to nuclear power plant
Can equipment needed for the design criteria abided by and redundant configuration, that is, configure more than two safety level centralization junction boxes
304b、304c.Also, the other power supply of different lines safety level centralization junction box 304b, 304c other to different lines can be used, the
Two on-site signal display processing unit 302b, 302c and second detector 301b, 301c power supply, in case a row equipment fault makes
Security function is thoroughly lost.So, the other equipment of different lines of security function is executed, safety class equipment is set with non-security grade
It is standby to disclosure satisfy that single failure criteria.
In addition, each safety level centralization junction box 304b, 304c can be separately connected more than two secondary scene signals
Display processing unit 302b, 302b ', 302c, 302c ', each secondary scene signal display processing unit 302b, 302b ',
302c, 302c ' reconnect one second detector 301b, 301b ', 301c, 301c '.This also belongs to hold to meet nuclear power plant
The design criteria abided by needed for the equipment of row safety level function and the design carried out.
Similarly, non-security grade centralization junction box 304a can connect more than two primary scene signal display processing lists
First 302a, 302a ', each primary scene signal display processing unit 302a, 302a ' reconnect a primary scene monitoring device
301a、301a’。
Example IV
Corresponding with embodiment one, the present embodiment provides the signal transmission controlling parties in a kind of nuclear power plant's radiation monitoring system
Method is applied in nuclear power plant's radiation monitoring system described in embodiment one, and nuclear power plant's radiation monitoring system includes that field monitoring is set
Standby, field monitoring equipment is connect with digital computer control system DCS system, is included the following steps：
Primary scene monitoring signals transmitting step, wherein the acquisition of field monitoring equipment includes that primary scene monitoring signals exist
Interior field monitoring signal, and the field monitoring signal including primary scene monitoring signals is sent to the DCS system,
Primary scene monitoring signals are for non-security grade and without the signal of chain control function.
Embodiment one is please referred to about illustrating for primary scene monitoring signals transmitting step, details are not described herein.
The according to embodiments of the present invention four signal transmission control methods provided, DCS system obtain non-security grade and without chain
The signal of control function, that is, primary scene detection signal needs not move through KRT servers, and transmission mode compared with the existing technology subtracts
Data acquisition intermediate link is lacked, and the transmission of primary scene detection signal is not by the unstable shadow of KRT server contention states
It rings, therefore, it is possible to avoid the primary scene for being transferred to DCS system from detecting dropout, improves primary scene and detect signal transmission
Reliability.
In addition above-described embodiment two to three is corresponded to, in the more specific realization method of example IV, field monitoring signal
Further include secondary scene monitoring signals, secondary scene monitoring signals are safety level signal or have chain control relationship with process equipment
Signal；Nuclear power plant's radiation monitoring system includes the primary scene monitoring device and secondary scene monitoring device of point row configuration, the
One field monitoring equipment is used to obtain primary scene monitoring signals from radiation scene, and secondary scene monitoring device is used for existing from radiation
Field obtains secondary scene monitoring signals；Primary scene monitoring signals transmitting step specifically includes：Primary scene monitoring device is to DCS
System sends primary scene monitoring signals；Signal transmission control method further includes：Secondary scene monitoring signals transmitting step,
In, secondary scene monitoring device sends secondary scene monitoring signals to DCS system.
In another more specific realization method, nuclear power plant's radiation monitoring system further includes power plant radiation monitoring system KRT clothes
Business device, KRT servers have KRT communication modules；DCS system has DCS communication modules, DCS communication modules and KRT communication modules
Communication connection；Signal transmission control method further includes：Field monitoring signal forwarding step, wherein KRT communication modules are logical from DCS
It interrogates module and receives field monitoring signal.
In another more specific realization method, primary scene monitoring device is aobvious including the first detector, primary scene signal
Show that processing unit and the first junction box, the first detector connect with primary scene signal display processing unit, primary scene signal
Display processing unit is connect with the first junction box；
Secondary scene monitoring device includes the second detector, secondary scene signal display processing unit and the second junction box,
Second detector is connect with secondary scene signal display processing unit, secondary scene signal display processing unit and the second junction box
Connection；
Primary scene monitoring signals transmitting step specifically includes：First detector obtains first from radiation scene and measures letter
Number, primary scene signal display processing unit receives the first measuring signal from the first detector and is determined according to the first measuring signal
First superthreshold alarm signal, the first superthreshold alarm signal indicate that the first measuring signal has exceeded threshold value, primary scene monitoring
Signal includes the first measuring signal and the first superthreshold alarm signal, and DCS system obtains primary scene via the first junction box and supervises
Survey signal；
Secondary scene monitoring signals transmitting step specifically includes：Second detector obtains second from radiation scene and measures letter
Number, secondary scene signal display processing unit receives the second measuring signal from the second detector and is determined according to the second measuring signal
Second superthreshold alarm signal, the second superthreshold alarm signal indicate that the second measuring signal has exceeded threshold value, secondary scene monitoring
Signal includes the second measuring signal and the second superthreshold alarm signal, and DCS system obtains the secondary scene via the second junction box and supervises
Survey signal.
In another more specific realization method, between DCS system and primary scene signal display processing unit, DCS system
Between the signal display processing unit of the secondary scene, respectively it is configured with and is exclusively used in the first measuring signal of transmission or the second measurement letter
Number the first connecting line, be exclusively used in transmission the first superthreshold alarm signal or the second superthreshold alarm signal the second connecting line；
Nuclear power plant's radiation monitoring system further includes being set to radiation value to connect less than the safety level centralization in the region of preset value
Line case and non-security grade centralization junction box；
The input terminal of safety level centralization junction box is connect with the first junction box, and output end is connect with DCS system；
The input terminal of non-security grade centralization junction box is connect with the first junction box, and output end is connect with DCS system；
In safety level centralization junction box and non-security grade centralization junction box, the first connecting line directly passes through, and second
Series connection inhibits switch for controlling the alarm that the second connecting line is turned on or off on connecting line；
Signal transmission control method further includes：Alarm signal rate-determining steps, wherein alarm inhibits the second connection of switch control
Line is turned on or off.
In another more specific realization method, DCS system is also equipped with：The DCS interchangers that are connect with DCS communication modules, peace
Full level data acquisition cabinet, non-security level data acquire cabinet；
Safety level data gather computer cabinet is connect with the output end of safety level centralization junction box, non-security level data harvester
Cabinet is connect with the output end of non-security grade centralization junction box, DCS interchangers respectively with safety level data gather computer cabinet and non-peace
Full level data acquisition cabinet connection；
Primary scene monitoring signals transmitting step specifically includes：Safety level data gather computer cabinet connects via safety level centralization
Line case acquires primary scene monitoring signals from primary scene monitoring device；
Secondary scene monitoring signals transmitting step specifically includes：Non-security level data acquisition cabinet is concentrated via non-security grade
Formula junction box acquires secondary scene monitoring signals from secondary scene monitoring device；
Field monitoring signal forwarding step specifically includes：DCS communication modules connect via DCS interchangers from safety level centralization
Line case obtains primary scene monitoring signals, and obtaining the secondary scene from non-security grade centralization junction box via DCS interchangers monitors
Signal, KRT communication modules send primary scene monitoring signals and secondary scene monitoring signals.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (11)
1. a kind of nuclear power plant's radiation monitoring system, including field monitoring equipment, which is characterized in that the field monitoring equipment and number
Word computer control system DCS system connects, and the field monitoring equipment obtains including primary scene monitoring signals
Field monitoring signal, and the field monitoring signal including primary scene monitoring signals is sent to the DCS system, it is described
Primary scene monitoring signals are for non-security grade and without the signal of chain control function；
The DCS system includes the display of control processor and the connection control processor, and the control processor is used
In obtaining the field monitoring signal and handle it, the display for show according to the field monitoring signal into
The corresponding informance that row processing obtains.
2. nuclear power plant's radiation monitoring system according to claim 1, which is characterized in that the field monitoring signal further includes
Secondary scene monitoring signals, the secondary scene monitoring signals are safety level signal or have chain control relationship with process equipment
Signal；
Nuclear power plant's radiation monitoring system includes the primary scene monitoring device and secondary scene monitoring device of point row configuration, institute
Primary scene monitoring device is stated for obtaining the primary scene monitoring signals, the secondary scene monitoring device from radiation scene
For obtaining the secondary scene monitoring signals from radiation scene；
The primary scene monitoring device sends the primary scene monitoring signals, the secondary scene prison to the DCS system
Measurement equipment sends the secondary scene monitoring signals to the DCS system.
3. nuclear power plant's radiation monitoring system according to claim 2, which is characterized in that further include power plant's radiation monitoring system
KRT servers, the KRT servers have KRT communication modules；
The DCS system has DCS communication modules, and connection is communicated between the DCS communication modules and the KRT communication modules,
The KRT communication modules receive the field monitoring signal from the DCS communication modules.
4. nuclear power plant's radiation monitoring system according to claim 3, which is characterized in that
The primary scene monitoring device includes the first detector, primary scene signal display processing unit and the first junction box,
First detector is connect with the primary scene signal display processing unit, the primary scene signal display processing unit
It is connect with first junction box；
The secondary scene monitoring device includes the second detector, secondary scene signal display processing unit and the second junction box,
Second detector is connect with the secondary scene signal display processing unit, the secondary scene signal display processing unit
It is connect with second junction box；
First detector is used to obtain the first measuring signal, the primary scene signal display processing unit from radiation scene
For receiving first measuring signal from first detector and determining the first superthreshold according to first measuring signal
Alarm signal, the first superthreshold alarm signal indicate that first measuring signal has exceeded threshold value, the primary scene prison
It includes first measuring signal and the first superthreshold alarm signal to survey signal；
Second detector is used to obtain the second measuring signal, the secondary scene signal display processing unit from radiation scene
For receiving second measuring signal from second detector and determining the second superthreshold according to second measuring signal
Alarm signal, the second superthreshold alarm signal indicate that second measuring signal has exceeded threshold value, the secondary scene prison
It includes second measuring signal and the second superthreshold alarm signal to survey signal；
The DCS system obtains the primary scene monitoring signals via first junction box, via second junction box
Obtain the secondary scene monitoring signals.
5. nuclear power plant's radiation monitoring system according to claim 4, which is characterized in that
Between the DCS system and the primary scene signal display processing unit, the DCS system and the secondary scene believe
Between number display processing unit, respectively it is configured with and is exclusively used in transmitting first measuring signal or second measuring signal
First connecting line is exclusively used in transmitting the second connection of the first superthreshold alarm signal or the second superthreshold alarm signal
Line；
Nuclear power plant's radiation monitoring system further includes being set to radiation value to connect less than the safety level centralization in the region of preset value
Line case and non-security grade centralization junction box；
The input terminal of the safety level centralization junction box is connect with first junction box, and output end connects with the DCS system
It connects；
The input terminal of the non-security grade centralization junction box is connect with first junction box, output end and the DCS system
Connection；
In the safety level centralization junction box and the non-security grade centralization junction box, first connecting line is directly logical
It crosses, series connection is for controlling the alarm inhibition switch that second connecting line is turned on or off on second connecting line.
6. nuclear power plant's radiation monitoring system according to claim 5, which is characterized in that
The safety level centralization junction box is two or more, and each safety level centralization junction box is separately connected described the
One field monitoring equipment.
7. the signal transmission control method in a kind of nuclear power plant's radiation monitoring system is applied to nuclear power plant described in claim 1
In radiation monitoring system, nuclear power plant's radiation monitoring system includes field monitoring equipment, which is characterized in that the field monitoring
Equipment is connect with digital computer control system DCS system, and the DCS system includes control processor and the connection control
The display of processor processed, includes the following steps：
Primary scene monitoring signals transmitting step, wherein the field monitoring equipment acquisition includes that primary scene monitoring signals exist
Interior field monitoring signal, and the field monitoring signal including primary scene monitoring signals is sent to the DCS system,
The primary scene monitoring signals are for non-security grade and without the signal of chain control function；
Wherein, the control processor obtains the field monitoring signal and handles it, and the display shows basis
The corresponding informance that the field monitoring signal is handled.
8. signal transmission control method according to claim 7, which is characterized in that the field monitoring signal further includes
Two field monitoring signals, the secondary scene monitoring signals are safety level signal or the letter for having chain control relationship with process equipment
Number；
Nuclear power plant's radiation monitoring system includes the primary scene monitoring device and secondary scene monitoring device of point row configuration, institute
Primary scene monitoring device is stated for obtaining the primary scene monitoring signals, the secondary scene monitoring device from radiation scene
For obtaining the secondary scene monitoring signals from radiation scene；
The primary scene monitoring signals transmitting step specifically includes：The primary scene monitoring device is sent out to the DCS system
Send the primary scene monitoring signals；
The signal transmission control method further includes：Secondary scene monitoring signals transmitting step, wherein the secondary scene monitoring
Equipment sends the secondary scene monitoring signals to the DCS system.
9. signal transmission control method according to claim 8, which is characterized in that nuclear power plant's radiation monitoring system is also
Including power plant's radiation monitoring system KRT servers, the KRT servers have KRT communication modules；
The DCS system has DCS communication modules, and the DCS communication modules are connected with KRT communication modules communication；
The signal transmission control method further includes：Field monitoring signal forwarding step, wherein the KRT communication modules are from institute
It states DCS communication modules and receives the field monitoring signal.
10. signal transmission control method according to claim 9, which is characterized in that
The primary scene monitoring device includes the first detector, primary scene signal display processing unit and the first junction box,
First detector is connect with the primary scene signal display processing unit, the primary scene signal display processing unit
It is connect with first junction box；
The secondary scene monitoring device includes the second detector, secondary scene signal display processing unit and the second junction box,
Second detector is connect with the secondary scene signal display processing unit, the secondary scene signal display processing unit
It is connect with second junction box；
The primary scene monitoring signals transmitting step specifically includes：First detector obtains first from radiation scene and measures
Signal, the primary scene signal display processing unit is from first detector reception, first measuring signal and according to institute
It states the first measuring signal and determines that the first superthreshold alarm signal, the first superthreshold alarm signal indicate that described first measures letter
Number threshold value is had exceeded, the primary scene monitoring signals include first measuring signal and the first superthreshold alarm signal
Number, the DCS system obtains the primary scene monitoring signals via first junction box；
The secondary scene monitoring signals transmitting step specifically includes：Second detector obtains second from radiation scene and measures
Signal, the secondary scene signal display processing unit is from second detector reception, second measuring signal and according to institute
It states the second measuring signal and determines that the second superthreshold alarm signal, the second superthreshold alarm signal indicate that described second measures letter
Number threshold value is had exceeded, the secondary scene monitoring signals include second measuring signal and the second superthreshold alarm signal
Number, the DCS system obtains the secondary scene monitoring signals via second junction box.
11. signal transmission control method according to claim 10, which is characterized in that
Between the DCS system and the primary scene signal display processing unit, the DCS system and the secondary scene believe
Between number display processing unit, respectively it is configured with and is exclusively used in transmitting first measuring signal or second measuring signal
First connecting line is exclusively used in transmitting the second connection of the first superthreshold alarm signal or the second superthreshold alarm signal
Line；
Nuclear power plant's radiation monitoring system further includes being set to radiation value to connect less than the safety level centralization in the region of preset value
Line case and non-security grade centralization junction box；
The input terminal of the safety level centralization junction box is connect with first junction box, and output end connects with the DCS system
It connects；
The input terminal of the non-security grade centralization junction box is connect with first junction box, output end and the DCS system
Connection；
In the safety level centralization junction box and the non-security grade centralization junction box, first connecting line is directly logical
It crosses, series connection is for controlling the alarm inhibition switch that second connecting line is turned on or off on second connecting line；
The signal transmission control method further includes：Alarm signal rate-determining steps, wherein the alarm inhibits described in switch control
Second connecting line is turned on or off.
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| CN201369177Y (en) * | 2008-12-23 | 2009-12-23 | 中广核工程有限公司 | Pressurized-water reactor nuclear power plant radiation monitoring system |
| CN102930907A (en) * | 2012-10-16 | 2013-02-13 | 中国核电工程有限公司 | Nuclear power plant digital radiation monitoring system |
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